These systems are hardware or software devices that can help you monitor access across the network to and from your server as well as activity on the server itself.
这些系统可以是硬件或软件设备，它们能够监控跨越网络对服务器的访问、来自服务器的访问以及服务器自身的活动。
It works even on devices without advanced optic hardware such as a macro lens or auto-focus.
它的工作原理，即使在没有先进的，如微距镜头或自动对焦光学硬件设备。
If you still cannot start the computer, look for possible hardware problems, such as defective devices, installation problems, cabling problems, or connector problems.
如果你依然不能启动计算机，查找硬件问题，诸如有问题的驱动程序、安装问题、连接线问题。
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